[cfe-dev] extend C syntax in clang plug-in?
chisophugis at gmail.com
Mon Nov 17 19:48:40 PST 2014
On Mon, Nov 17, 2014 at 7:00 PM, hongborong <hongbo.rong at intel.com> wrote:
> I want to experiment with some syntax extensions to C, including some new
> built-in types and new statements. Can it be done completely in a plugin?
No. Currently clang's plugin functionality is very limited.
-- Sean Silva
> Any related examples to look at?
> For an extremely simple example, let us say we have
> int A;
> A, B = 1, [1.0, 2.0];
> Here B is untyped, and [1.0, 2.0] is not an expected expression. Instead of
> throwing errors, can we write a clang plugin to do the following? (1)
> Pre-process the token stream. For example, the second statement can be
> broken into two statements: A=1; B=[1.0, 2.0]; That gives us a new token
> stream. (2) Parse. For the statement “B=[1.0, 2.0]”, build a customized AST
> node, and insert it to the function’s AST. (3) Some additional analysis may
> be done on the function’s AST. (4) Finally, transform the function's AST so
> that it completely conforms to standard C.
> View this message in context:
> Sent from the Clang Developers mailing list archive at Nabble.com.
> cfe-dev mailing list
> cfe-dev at cs.uiuc.edu
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